Tracker device



FIG. 1 is a right/top side perspective view of the tracker device design.

FIG. 2 is a top view of the tracker device design.

FIG. 3 is a bottom view of the tracker device design.

FIG. 4 is a front view of the tracker device design.

FIG. 5 is a back view of the tracker device design.

FIG. 6 is a right side view of the tracker device design; and,

FIG. 7 is a left side view of the tracker device design. 

The ornamental design for a tracker device, as shown and described. 